- Material: metal + plastic<br />- Voltage: 12V<br />- Volume: 105 dB<br />- Frequency: 375Hz<br />- Suitable for car、 motorcycle etc.<br /><br />                                                                                                                                Dimensions: 3.54 in x 3.54 in x 1.81 in (9.0 cm x 9.0 cm x 4.6 cm)<br />Weight: 10.44 oz (296 g)<br /><br />